I've since fitted windows and done some more painting – notably red buffers so it replicates the colour scheme of another, totally different, Hudswell Clarke shunter.
Unfortunately it left it looking more like a toy than a model.
Inspired by the finish on Ray MaxMahon's Harlandic I have started spraying it with Rustoleum matt varnish which actually gives a lovely satin finish. Much better – and it doesn't highlight every dink like gloss does!
Pictures will follow when spraying complete.
Neil